As far as PVC Pipe, definatly Scfhedule 40 to valves, but for the main i would use Poly pipe, you can have a contractor pull the whole thing for about 200.00 with little or no damage, and then all you have to do is dig where you want connections, also poly is more durable and flexible for under weight, PVC might crack. The Hunter SRC is a nine station controller. Just specify 9 because it also comes in six.
Thanks
Ray
Rays Above and Beyond Automatic Lawn Sprinklers
Thanks
Ray
Rays Above and Beyond Automatic Lawn Sprinklers